Defendant appealed the decision of the Appeals Panel sustaining the trial magistrate’s decision finding violations of  R.I.G.L. 1956 § 31-14-2 (prima facie limits) and §31-16-2 (manner of turning at intersection). Pursuant to State v. Sprague, 322 A.2d 36, (R.I. 1974), the District Court held that the officer’s testimony that the radar unit was calibrated properly before his shift, as well as testimony that the officer was properly trained in the use of a radar instrument was sufficient to establish the defendant’s speed. Here, the officer provided both of those facts in his testimony. Accordingly, the District Court affirmed the decision of the trial magistrate.